Wrench.



Ne.7to,o4o. e Patented sept. 30,1902.

- T.H.cAH|LL..

WRENCH.

Y (Appuetten tiled Jen. 2a, 1902.) (No Model.) 2 Sheets-Sheet 2. e

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tttwtt f ttt /NVENTO/l ATTORNEYS wmv;c ses.-

UNITED STATES PATENT OFFICE.

THOMAS H. CAHlLL, OF TERRA ALTA, WEST VIRGINIA, ASSIGNOR OF ONE- HALF TO /VILLIAMv F. DAILEY, VILLIAM BISHOP, AND CHARLES A. MILLER,

oF TERRA ALTA, WEST VIRGINIA.

YWRENCH.

SPECIFICATION forming part of Letters Patent No. 710,040, dated September 30, 1902.

Application tiled January 23, 1902. Serial No. 90.994. (No model.)

iZ'o tu whom, it may concern:

Be it known that I, THOMAS H. OAHILL, a citizen of the United States, and a resident of Terra Alta, in the county of Preston and State of Vest Virginia, have made certain new and useful Improvements in Vrenches, of which the following is a specification.

My invention is Yau improvement in wrenches, and has for an object to provide a to novel construction of wrench whereby the movable jaw can be quickly locked in any desired position and can be easily released for adjustment to another position, .as is frequently desired in the use of monkey- I5 wrenches; and the invention consists in certain novel constructions and combinations of parts, as will be hereinafter described and claimed.

In the drawings, Figure l is a perspective zo view of a wrench embodying my invention.

Fig. 2 is a vertical longitudinal section thereof'. Fig. 3 is a cross-section on about line 3 3 of Fig. 2. Fig. 4 is a detail perspective view ofthe wrench-shank with the fixed jaw. Fig. 5 is a detail perspective view of the adjusting-key. Fig. o is a detail perspective View of the locking-bar. Fig. 7 is a side View of the wrench, showing` a-different arrangement of the locking-bar from that/shown in Fig. 1; 3o and Fig. 8 is a side view of a combined pipe and nut wrench, all of which will be described.

The wrench has ahandle A, a shank B, provided with the fixed jaw O, the sliding jaw D, the locking-bar E, the adjusting-key F, and

in the construction shown in Fig. 8 isl adapted at G and G' to serve as a pipe-wrench.

The shank B is secured in the handle A, which handle is mortised at A to receive the butt-end of the key F and is provided at A2 4o with a slot in which operates the thumb-lug or projection F', which projects beyond the handle, so it can be conveniently operated, and is engaged bythe spring H, which actuates the key F normally to the position shown in Fig. 2. The shank B is grooved longitudinally at b, the base-wall of the groove tapering, as shown in Figs. 2 and 4, and adapted to receive the key F, as shown in Fig. 2. The locking-bar E is grooved on Vits inner side at 5o e and is provided at its ends with projections or tenons e' and e2, which extend, respectively, into the fixed jaw O and the handle A and serve to retain the locking-bar in place, as will be understood from Fig. 2. This locking-bar extends within the boxing d of the sliding jaw D and is preferably toothed or serrated on its outer side to engage the said jaw and lock the same in any position to which it may Ybe adjusted when the said locking-.bar is forced outward by the key Fin the position 6o of parts` shown in Fig. 2. It will be noticed the grooves b and ecombine to form a tapered seat for the key F,Which is also tapered and when adjusted, as shown in Fig. `2, presses the locking-bar out against the inner side of the boxing d and-secures the sliding jaw D.

At the same time the thumb-piece F can be easily operated to release the bar E by sliding the adjusting-key F back from the position shown in Fig 2, when the jaw D can be 7o adjusted to any desired position.

The construction shown in Fig. 7 is similar to that shown in Figs. 1 and 2, except the adjusting-bar and the locking-bar are arranged on the front-side of the shank in Fig. 7 in- 75 stead of on the rear side, as shown in Fig. l. In said Fig. 7 the shank l has the fixed jaw 2 and the sliding jaw 3 overlies the lockingbar 4, which may loeY operated-by the thumbpiece 5 of the adjusting-key.

In Fig. 8 the fixed and sliding jaws are extended at G and G' and adapted for operation upon pipes and other round objects.

By the invention it will be noticed the sliding jaw can be quickly adjusted to any desired position and then locked by the key F, which key may be automatically adjusted to locked position by means of the spring H. It will also be noticed the key is practicallyincased within the shank and locking-bar and 9c the several parts are simpleY in construction, easily operated, and 'not likely to get broken or out of repair.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The improvement in wrenches herein described comprising the handle having a mortise for the butt of the adjusting-key, the

shank having a fixed jaw and provided with loo the longitudinal groove for the adjusting-key, the sliding jaw, the lockingbar having a groove in its inner side coinciding with that in the shank and provided at its ends with projecting tenons engaging with the handle and the fixed jaw, and the adjusting-key operating in the grooves of the locking-bar and of the shank and having its butt-end operat ing in the handle and provided with a thumbpiece, and the spring for actuating said key substantially as set forth.

2. The combination of the handle,the shank having the fixed jaw, the sliding jaw, the locking-bar held at its ends to the handle and to the fixed jaw, and the key operating between the locking-bar and the handle and having in rear of the locking-bar a projection or thumbthe shank and locking-bar and extended at' its rear end within the handle beyond the rear end of the locking-bar substantially as set forth.

THOMAS H. UAHILL.

Witnesses:

L. F. MILLER, T. L. GRIBBLE. 

